Days after it was thought locked down, Apple has again updated a 10.6.5 release for developers only, just two days after the previous build -- causing some inconvenience to testers of the first builds of 10.6.6, seeded just four days ago. In order to test these "extra" builds of 10.6.5, developers would need to downgrade their machines back to 10.6.0-10.6.4 first.